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https://www.readbyqxmd.com/read/29117652/microhardness-of-bulk-fill-composite-materials
#1
Katarina Kelić, Sanja Matić, Danijela Marović, Eva Klarić, Zrinka Tarle
The aim of the study was to determine microhardness of high- and low-viscosity bulk-fill composite resins and compare it with conventional composite materials. Four materials of high-viscosity were tested, including three bulk-fills: QuiXfi l (QF), x-tra fi l (XTF) and Tetric EvoCeram Bulk Fill (TEBCF), while nanohybrid composite GrandioSO (GSO) served as control. The other four were low-viscosity composites, three bulk-fill materials: Smart Dentin Replacement (SDR), Venus Bulk Fill (VBF) and x-tra base (XB), and conventional control material X-Flow (XF)...
December 2016: Acta Clinica Croatica
https://www.readbyqxmd.com/read/29098237/-comparative-evaluation-of-marginal-microleakage-of-three-different-resins-in-class-v-composite-restorations
#2
Zheng Zhu, Ya-Qin Zhu
PURPOSE: To compare and evaluate microleakage at the occlusal wall and cervical wall in Class V cavities restored with Ivoclar Tetric N Ceram Bulk Fill composite, Tetric N Flow composite and N Ceram nanocomposite. METHODS: Sixty-six extracted human maxillary premolars, which were intact and healthy, were randomly assigned into 3 groups (n=22). Standardized Class V cavities were prepared on the buccal surface of maxillary premolars. The occlusal walls of the cavities were located on the enamel and the cervical walls were located on dentin and cementum...
June 2017: Shanghai Kou Qiang Yi Xue, Shanghai Journal of Stomatology
https://www.readbyqxmd.com/read/29034597/effect-of-composite-type-and-placement-technique-on-cuspal-strain
#3
Vilhelm G Ólafsson, André V Ritter, Edward J Swift, Lee W Boushell, Ching-Chang Ko, Gabrielle R Jackson, Sumitha N Ahmed, Terence E Donovan
OBJECTIVE: To compare the cuspal strain in Class II restorations made with bulk-fill and conventional composite resins. MATERIALS AND METHODS: Fifty extracted maxillary premolars were mounted into phenolic rings and divided into five groups (n = 10). Specimens received standardized MOD preparations. A two-step self-etch adhesive was applied and the preparations were restored using a custom matrix as follows: Filtek Supreme Ultra in eight 2-mm increments (FSUI); Filtek Supreme Ultra in bulk (FSUB); SonicFill in bulk (SF); SureFil SDR flow in bulk, covered with a 2-mm occlusal layer of Filtek Supreme Ultra (SDR/FSU); Tetric EvoCeram Bulk Fill in bulk (TEBF)...
October 16, 2017: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/29019552/water-sorption-and-solubility-of-bulk-fill-composites-polymerized-with-a-third-generation-led-lcu
#4
Tuğba Misilli, Nihan Gönülol
The aim of this study was to compare the degree of water sorption and solubility in bulk-fills after curing with a polywave light source. A total of 120 disc-shaped specimens (8 mm diameter; 4 mm depth) were prepared from three regular bulk-fill materials (X-tra Fil, Tetric N-Ceram Bulk Fill, SonicFill), and a control material (Filtek Z250), cured in 3 different modes (standard: 1000 mW/cm2-20 s; high power: 1400 mW/cm2-12 s; xtra power: 3200 mW/cm2-6 s) using a third generation light-emitting diode light curing unit...
September 28, 2017: Brazilian Oral Research
https://www.readbyqxmd.com/read/28976846/polymerization-behavior-and-mechanical-properties-of-high-viscosity-bulk-fill-and-low-shrinkage-resin-composites
#5
S Shibasaki, T Takamizawa, K Nojiri, A Imai, A Tsujimoto, H Endo, S Suzuki, S Suda, W W Barkmeier, M A Latta, M Miyazaki
The present study determined the mechanical properties and volumetric polymerization shrinkage of different categories of resin composite. Three high viscosity bulk fill resin composites were tested: Tetric EvoCeram Bulk Fill (TB, Ivoclar Vivadent), Filtek Bulk Fill posterior restorative (FB, 3M ESPE), and Sonic Fill (SF, Kerr Corp). Two low-shrinkage resin composites, Kalore (KL, GC Corp) and Filtek LS Posterior (LS, 3M ESPE), were used. Three conventional resin composites, Herculite Ultra (HU, Kerr Corp), Estelite ∑ Quick (EQ, Tokuyama Dental), and Filtek Supreme Ultra (SU, 3M ESPE), were used as comparison materials...
October 4, 2017: Operative Dentistry
https://www.readbyqxmd.com/read/28976845/radiopacity-and-porosity-of-bulk-fill-and-conventional-composite-posterior-restorations-digital-x-ray-analysis
#6
C J Soares, Cmp Rosatto, V F Carvalho, A A Bicalho, Jcg Henriques, A L Faria-E-Silva
OBJECTIVES: To compare radiopacity and porosity as expressed by the presence of voids in restorations carried out using bulk-fill and incremental filling techniques to restore large mesio-occlusal-distal (MOD) cavities. METHODS: Fifty-five molars with MOD preparations were incrementally filled with Filtek Z-350XT (Z350XT) or bulk-fill composite: Filtek Bulk Fill/Z-350XT (FBF/Z350XT), Venus Bulk Fill/Charisma Diamond (VBF/CHA), SDR/Esthet-X HD (SDR/EST-X), Tetric EvoCeram Bulk Fill (TEC)...
October 4, 2017: Operative Dentistry
https://www.readbyqxmd.com/read/28976839/the-effects-of-cavity-preparation-and-composite-resin-on-bond-strength-and-stress-distribution-using-the-microtensile-bond-test
#7
Ssl Braga, Lrs Oliveira, R B Rodrigues, A A Bicalho, V R Novais, S Armstrong, C J Soares
OBJECTIVES: To evaluate the effect of flowable bulk-fill or conventional composite resin on bond strength and stress distribution in flat or mesio-occlusal-distal (MOD) cavity preparations using the microtensile bond strength (μTBS) test. METHODS: Forty human molars were divided into two groups and received either standardized MOD or flat cavity preparations. Restorations were made using the conventional composite resin Z350 (Filtek Z350XT, 3M-ESPE, St Paul, MN, USA) or flowable bulk-fill (FBF) composite resin (Filtek Bulk Fill Flowable, 3M-ESPE)...
October 4, 2017: Operative Dentistry
https://www.readbyqxmd.com/read/28976838/bulk-fill-composites-effectiveness-of-cure-with-poly-and-monowave-curing-lights-and-modes
#8
J K Gan, A U Yap, J W Cheong, N Arista, Cbk Tan
This study compared the effectiveness of cure of bulk-fill composites using polywave light-emitting diode (LED; with various curing modes), monowave LED, and conventional halogen curing lights. The bulk-fill composites evaluated were Tetric N-Ceram bulk-fill (TNC), which contained a novel germanium photoinitiator (Ivocerin), and Smart Dentin Replacement (SDR). The composites were placed into black polyvinyl molds with cylindrical recesses of 4-mm height and 3-mm diameter and photopolymerized as follows: Bluephase N Polywave High (NH), 1200 mW/cm(2) (10 seconds); Bluephase N Polywave Low (NL), 650 mW/cm(2) (18...
October 4, 2017: Operative Dentistry
https://www.readbyqxmd.com/read/28969281/comparative-evaluation-of-the-depth-of-cure-and-degree-of-conversion-of-two-bulk-fill-flowable-composites
#9
Ca Anand Yokesh, P Hemalatha, M Muthalagu, M Robert Justin
INTRODUCTION: Since the development of resin based composites, several improvements have been made to improve their physical and chemical properties. In an attempt to fasten and simplify the restoration process, a new class of resin based composite materials, called the bulk fill resin based composites have been introduced, which has been claimed to achieve a depth of cure of 4 mm without affecting the properties of the material. AIM: To comparatively evaluate the depth of cure of two different bulk fill flowable composite resins by ISO 4049 method and to evaluate the degree of conversion of the same composite resins with Fourier Transform Infrared (FTIR) spectroscopy method...
August 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28960790/color-of-bulk-fill-composite-resin-restorative-materials
#10
Çağatay Barutcigil, Kubilay Barutcigil, Mehmet Mustafa Özarslan, Ayşe Dündar, Burak Yilmaz
OBJECTIVE: To evaluate the color stability of novel bulk-fill composite resins. MATERIALS AND METHODS: Color measurements of a nanohybrid composite resin (Z550) and 3 bulk-fill composite resins (BLK, AFX, XTF; n = 45) were performed before polymerization. After polymerization, color measurements were repeated and specimens were immersed in distilled water or red wine, or coffee. Color change [CIEDE2000 (ΔE00 )] was calculated after 24 h, 1 and 3 weeks. Data were analyzed with Kruskal-Wallis, Mann-Whitney U and Wilcoxon tests (α = 0...
September 28, 2017: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/28956844/the-influence-of-water-sorption-of-dental-light-cured-composites-on-shrinkage-stress
#11
Kinga Bociong, Agata Szczesio, Krzysztof Sokolowski, Monika Domarecka, Jerzy Sokolowski, Michal Krasowski, Monika Lukomska-Szymanska
The contraction stress generated during the photopolymerization of resin dental composites is the major disadvantage. The water sorption in the oral environment should counteract the contraction stress. The purpose was to evaluate the influence of the water sorption of composite materials on polymerization shrinkage stress generated at the restoration-tooth interface. The following materials were tested: Filtek Ultimate, Gradia Direct LoFlo, Heliomolar Flow, Tetric EvoCeram, Tetric EvoCeram Bulk Fill, Tetric EvoFlow, Tetric EvoFlow Bulk Fill, X-tra Base, Venus BulkFil, and Ceram...
September 28, 2017: Materials
https://www.readbyqxmd.com/read/28936294/microtensile-bond-strength-of-bulk-fill-restorative-composites-to-dentin
#12
Jyothi Mandava, Divya-Prasanna Vegesna, Ravichandra Ravi, Mohan-Rao Boddeda, Lakshman-Varma Uppalapati, M D Ghazanfaruddin
BACKGROUND: To facilitate the easier placement of direct resin composite in deeper cavities, bulk fill composites have been introduced. The Mechanical stability of fillings in stress bearing areas restored with bulk-fill resin composites is still open to question, since long term clinical studies are not available so far. Thus, the objective of the study was to evaluate and compare the microtensile bond strength of three bulk-fill restorative composites with a nanohybrid composite. MATERIAL AND METHODS: Class I cavities were prepared on sixty extracted mandibular molars...
August 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28923548/survival-of-extensively-damaged-endodontically-treated-incisors-restored-with-different-types-of-posts-and-core-foundation-restoration-material
#13
Priscilla Cardoso Lazari, Marco Aurélio de Carvalho, Altair A Del Bel Cury, Pascal Magne
STATEMENT OF PROBLEM: Which post-and-core combination will best improve the performance of extensively damaged endodontically treated incisors without a ferrule is still unclear. PURPOSE: The purpose of this in vitro study was to investigate the restoration of extensively damaged endodontically treated incisors without a ferrule using glass-ceramic crowns bonded to various composite resin foundation restorations and 2 types of posts. MATERIAL AND METHODS: Sixty decoronated endodontically treated bovine incisors without a ferrule were divided into 4 groups and restored with various post-and-core foundation restorations...
September 16, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28902239/efficiency-of-polymerization-of-bulk-fill-composite-resins-a-systematic-review
#14
REVIEW
André Figueiredo Reis, Mariana Vestphal, Roberto Cesar do Amaral, José Augusto Rodrigues, Jean-François Roulet, Marina Guimarães Roscoe
This systematic review assessed the literature to evaluate the efficiency of polymerization of bulk-fill composite resins at 4 mm restoration depth. PubMed, Cochrane, Scopus and Web of Science databases were searched with no restrictions on year, publication status, or article's language. Selection criteria included studies that evaluated bulk-fill composite resin when inserted in a minimum thickness of 4 mm, followed by curing according to the manufacturers' instructions; presented sound statistical data; and comparison with a control group and/or a reference measurement of quality of polymerization...
August 28, 2017: Brazilian Oral Research
https://www.readbyqxmd.com/read/28902235/trends-in-restorative-composites-research-what-is-in-the-future
#15
REVIEW
Mariel Soeiro Maas, Yvette Alania, Livia Camargo Natale, Marcela Charantola Rodrigues, David Christopher Watts, Roberto Ruggiero Braga
Clinical trials have identified secondary caries and bulk fracture as the main causes for composite restoration failure. As a measure to avoid frequent reinterventions for restoration replacement, composites with some sort of defense mechanism against biofilm formation and demineralization, as well as materials with lower susceptibility to crack propagation are necessary. Also, the restorative procedure with composites are very time-consuming and technically demanding, particularly concerning the application of the adhesive system...
August 28, 2017: Brazilian Oral Research
https://www.readbyqxmd.com/read/28886766/polymer-based-direct-filling-materials
#16
REVIEW
Carmem S Pfeifer
After a brief review of current restorative materials and classifications, this article discusses the latest developments in polymer-based direct filling materials, with emphasis on products and studies available in the last 10 years. This will include the more recent bulk fill composites and self-adhesive materials, for which clinical evidence of success, albeit somewhat limited, is already available. The article also introduces the latest cutting edge research topics on new materials for composite restorations, and an outlook for the future of how those may help to improve the service life of dental composite restorations...
October 2017: Dental Clinics of North America
https://www.readbyqxmd.com/read/28883301/changes-in-polymerization-stress-and-elastic-modulus-of-bulk-fill-resin-composites-for-24-hours-after-irradiation
#17
Takatsugu Yamamoto, Masao Hanabusa, Saori Kimura, Yasuko Momoi, Tohru Hayakawa
The objective of this study was to investigate changes in polymerization stress and elastic modulus for light-cured bulk-fill resin composites following irradiation. Crack analysis was applied to obtain the stresses for 24 h after irradiation, which were calculated from the lengths of cracks in a glass mold bonded to the composites. The elastic modulus was repeatedly measured by nano-indentation tests performed over 24 h. The lengths of the cracks, the interfacial stress, and the elastic modulus were significantly affected by the material and time after irradiation (p<0...
September 7, 2017: Dental Materials Journal
https://www.readbyqxmd.com/read/28869367/survival-of-direct-posterior-composites-with-and-without-a-bulk-fill-base
#18
C McGuirk, F Hussain, B J Millar
OBJECTIVES: Direct composite restorations are increasingly popular and a flowable bulk-fill base material (SDR, Dentsply) claims to minimise stress through a more flexible polymerisation process. This retrospective audit of restorations placed in general practice compares SDR based restorations with conventional composite restorations. METHODS: Restorations were all placed by one operator using a similar clinical technique and were audited as Group G, placed with a conventional layering composite (G-aenial, GC) and Group S which had a bulk-fill base of SDR (Dentsply) and then were covered with G-aenial (GC)...
September 2017: European Journal of Prosthodontics and Restorative Dentistry
https://www.readbyqxmd.com/read/28840890/the-next-generation-in-bulk-fill-technology
#19
(no author information available yet)
No abstract text is available yet for this article.
August 25, 2017: British Dental Journal
https://www.readbyqxmd.com/read/28832713/comparing-depth-dependent-curing-radiant-exposure-and-time-of-curing-of-regular-and-flow-bulk-fill-composites
#20
Jose Augusto Rodrigues, Ilana Pais Tenorio, Ginger Baranhuk Rabello de Mello, André Figueiredo Reis, Chiayi Shen, Jean-François Roulet
The effect of restoration depth on the curing time of a conventional and two bulk-fill composite resins by measuring microhardness and the respective radiosity of the bottom surface of the specimen was investigated. 1-, 3- and 5-mm thick washers were filled with Surefil SDR Flow-U (SDR), Tetric EvoCeram Bulk Fill-IVA (TEC) or Esthet-X HD-B1 (EHD), and cured with Bluephase® G2 for 40s. Additional 1-mm washers were filled with SDR, TEC or EHD, placed above the light sensor of MARC®, stacked with pre-cured 1-, 3- or 5-mm washer of respective material, and cured for 2...
August 21, 2017: Brazilian Oral Research
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